Since RoR is back I and several other people experience problems in melee hitting people. Problem is that you are following a person and can't hit it due to out of range so visual =/ real position. To finally be able to hit him you have to run in front of him. But if he is snared for example you colli with the visual position.
After some days now I guess that has something to do with mounts, because it normally only happes if a person is just dismounted.
If a person uses a 60% mount he is shown as riding with 50% speed and all xx seconds his position is adjusted(was the same on life). So if you dismount someone his position "jumps" up to several meters(was not the same on life afair) ... or not. In the "or not" case the melee hitting is a problem.
Hope I could describe it understandable and that you can "fix" that soon, coz range dds are a bit too happy with that
